For example, I heard lot that P2PB2B is one of the bullshit exchanges because it has fake volume, but why on
coinmarketcap can in the top 3?
Whereas on
Coingecko P2PB2B is ranked 114, Does coingecko know if it's bullshit exchange? so it's not in the top 3 like in coin marketcap
So which one do you trust more?
Coinmarketcap is the leading site for crypto details but with regards to exchange details, I can say that you are right the shit exchange that are faking their volume were able to rank higher so it will be good if they can fix it. There is a big chance that there will be a better update to come especially that coinmarketcap has been sold already to Binance and I would like to see whether the incoming update will be fair enough to all the users.
I am not a coingecko user so I cannot comment more about them, right now I can say that I will favor coinmarketcap as I've been using it for several years already in gathering some useful information about the crypto currencies.